Chemistry

Problem

An alloy rod of total mass

250\,\text{g}

is composed only of copper (density

8.96\,\text{g}/\text{cm}^3

) and zinc (density

7.13\,\text{g}/\text{cm}^3

). If the rod’s volume is

29.4\,\text{cm}^3

, determine the mass of copper present in the rod.